I am totally in favor of the H1B wages being raised to $130k. The system as it is right now is utterly broken. (Disclaimer: I was an H1B myself many years back, and I have hired H1B's as well).
We had a highly qualified candidate that we hired last year - he dwarfs any H1B requirement. However because H1B's are oversubscribed he had to go into a lottery where the chance of winning was 25%. And there is only 1 day per year you can apply for an H1B visa. Now luckily for us he won the lottery, and luckily for us we recruited him 4 weeks before the magic application date, so it all worked out. If anything went differently we would have lost him.
It shouldn't have to work like that - you can't operate a business not knowing whether you can actually get the people you hire, and only being able to recruit for a one month period each year. We shouldn't have to compete highly qualified candidates against companies who use the H1B program to lower their cost of wages. (Though I must admit I have never seen that - in every situation I've been, H1B's have always been more expensive than local hires - but I believe it when I read that InfoSys & Tata wasn't purely using the program to get the best people.)
Only thing is that I wished the $130k was more of an automatic feedback based pliable number, since these numbers tend to get stale after a few years and then we'll have the problem again. So if they we want to keep the visa numbers at 65'000 per year, figure out whatever salary cutoff would reach 65'000, and keep adjusting it every year.
I know the numbers favors Silicon Valley and Seattle recruiting though, so it's easy for me to say I don't care about the $130k cap since that's below our prevailing wage anyway, but that cap hits a company that's based in e.g. Austin higher. Maybe there should be a "cost of living" factor as well so that e.g. a $100k hire in one place is the equivalent of a $150k hire in another.
Either way $130k, and a general preference system is far better than the 1 in 4 lottery mess we have right now.
So to answer your questions:
1) Nothing
2) This is a good thing. If Tesla finds a well-qualified candidate in another country they will be able to immediately hire them instead of going into a 1 in 4 lottery
3) The market can be relied on the act irrationally